Across
- 2. gas particles moving inside the walls of a balloon
- 4. K1+U1=K2+U2
- 7. a ball hitting another ball on a billiard table
- 8. a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
- 10. everything stays in range
- 11. a car driving 55 mph
- 13. law of action and reaction
- 15. U=mgh
- 17. contact force
- 20. large mass/high velocity. small mass/high velocity
- 22. law of inertia
- 24. K.E.= 1/2m v^2
- 25. power*time
- 26. a system that cannot exchange either energy or matter outside the boundaries of the system
Down
- 1. a system that is completely isolated from its environment
- 3. U+K
- 5. a ball dropping and cannot rebound to its original height
- 6. quatative description of the changes that a force can produce on the motion of a body
- 9. work=newtons*meters
- 12. P=W/\Delta t
- 14. a ball bouncing back after being dropped
- 16. the energy transferred to or from an object via the application of force along a displacement
- 18. F=m*a
- 19. (W)
- 21. a table, a dog, a tree, anything
- 23. a system that has flows of information, energy, and/or matter between the system and its environment